49% (1999)

32% (1994)

79% (1990)

60% (1994)

58% (1999)

31% (1999)

72% (1995)

30% (1990)

55% (1994)

41% (2000)

40% (2000)

48% (1999)

63% (1996)

49% (2000)

45% (1998)

32% (1995)

0% (1991)

30% (1999)

23% (1996)

64% (1995)